Katharine Hubbard
Katharine Hubbard
  • Видео 95
  • Просмотров 441 803
Designing cloning primers for classical (restriction) cloning
Video use for teaching on module 500709 Cellular Regulation and Biotechnology at the University of Hull
Просмотров: 48 316

Видео

Plasmid design - protein tags
Просмотров 12 тыс.2 года назад
Video used for teaching on module 500709 Cellular Regulation and Biotechnology at the University of Hull
Plasmid Design - Promoters
Просмотров 8 тыс.2 года назад
Video used for teaching on module 500709 Cellular Regulation and Biotechnology at the University of Hull
Plasmid design (bacterial expression vector)
Просмотров 18 тыс.2 года назад
Video used for teaching on module 500709 Cellular Regulation and Biotechnology at the University of Hull
Restriction Cloning
Просмотров 17 тыс.2 года назад
Video used for teaching on module 500709 Cellular Regulation and Biotechnology at the University of Hull
Restriction Enzymes
Просмотров 10 тыс.2 года назад
Video used for teaching on module 500709 Cellular Regulation and Biotechnology at the University of Hull
Preparing Microscopy Images with Scale Bars
Просмотров 9 тыс.2 года назад
Video used for teaching on module 400484 Cells and Organelles
Amplification in Signal Transduction pathways
Просмотров 1,6 тыс.2 года назад
Video used for teaching on module 400484 Cells and Organelles at the University of Hull
Predicting mRNA and protein sequences from a gene sequence
Просмотров 9332 года назад
Video used for teaching on module 400484 Cells and Organelles at the University of Hull
Protein Structure
Просмотров 5772 года назад
Video used for teaching on module 400484 Cells and Organelles at the University of Hull
Genome composition calculations
Просмотров 3232 года назад
Video used for teaching on module 400484 Cells and Organelles at the University of Hull
Amino acids, R groups and Protein Biochemistry
Просмотров 3,3 тыс.2 года назад
Video used for teaching on module 400484 Cells and Organelles at the University of Hull
DNA structure and replication
Просмотров 4512 года назад
Video used for teaching on module 400484 Cells and Organelles at the University of Hull
Cellular building blocks ie biological macromolecules
Просмотров 5322 года назад
Video used for teaching on module 400484 Cells and Organelles at the University of Hull
At home ‘tea’ experiment - hypothesis testing, calibration curve and normalisation of data
Просмотров 2443 года назад
Video used for teaching at the University of Hull
At home experiments - Scoring Germination
Просмотров 833 года назад
At home experiments - Scoring Germination
At home chlorophyll extractions and dilution series
Просмотров 2,9 тыс.3 года назад
At home chlorophyll extractions and dilution series
At home 'tea' experiment - dilution series setup
Просмотров 1 тыс.3 года назад
At home 'tea' experiment - dilution series setup
Mobile Phone Colorimeter Spectrophotometer Setup
Просмотров 12 тыс.3 года назад
Mobile Phone Colorimeter Spectrophotometer Setup
At home plant growth experiment setup
Просмотров 1213 года назад
At home plant growth experiment setup
At home germination experiment setup
Просмотров 883 года назад
At home germination experiment setup
Block 3 quiz feedback
Просмотров 513 года назад
Block 3 quiz feedback
Secondary Messengers in Cell Signalling
Просмотров 7 тыс.3 года назад
Secondary Messengers in Cell Signalling
Principles of Cell Signalling
Просмотров 1,9 тыс.3 года назад
Principles of Cell Signalling
Bacterial Quorum Sensing
Просмотров 1,6 тыс.3 года назад
Bacterial Quorum Sensing
Intracellular protein targeting
Просмотров 2,5 тыс.3 года назад
Intracellular protein targeting
Adrenaline Signalling
Просмотров 7583 года назад
Adrenaline Signalling
Plant biotechnology - Agrobacterium transformation
Просмотров 8 тыс.3 года назад
Plant biotechnology - Agrobacterium transformation
G protein signalling
Просмотров 3553 года назад
G protein signalling
Genetics of Cancer
Просмотров 1913 года назад
Genetics of Cancer

Комментарии

  • @vitoriaaraujo3020
    @vitoriaaraujo3020 9 часов назад

    This video is gonna save my live in genetic engineering. Thank you!

  • @user-yp4wu4qb1i
    @user-yp4wu4qb1i 4 дня назад

    that perfect as hell you must get much much mre mybe if you make playlist according to lippincot or harper , will be ammzing

  • @akshathabanadka9808
    @akshathabanadka9808 8 дней назад

    How it g/L equivalent to microgram/mL. Isn't it mg/L?

  • @eloisepearce7949
    @eloisepearce7949 15 дней назад

    Thank you so much! Please could I ask how you would estimate an Amax value based on the experimental data?

  • @christinaliu3158
    @christinaliu3158 15 дней назад

    very good explanation,watched about 5min and then I know this is what I needed. Also saved another 2 or 3 vedios for my paper (pharmacology😢) Many thanks

  • @cemalltr3385
    @cemalltr3385 17 дней назад

    one in all, everything we must know is here in the video, I appreciate you <3

  • @batcryalok
    @batcryalok 23 дня назад

    Great video. Thanks.

  • @mikaelaprim4273
    @mikaelaprim4273 26 дней назад

    Katharine.God bless your mother

  • @dr.satyabratasahoo5644
    @dr.satyabratasahoo5644 Месяц назад

    Nice

  • @LeonardoBoroni
    @LeonardoBoroni Месяц назад

    you saved me with this amazing video: clear and complete! <3

  • @hoangquan5913
    @hoangquan5913 Месяц назад

    Thanks for sharing these videos for free, it's super helpful for Biotechnology section in my National Biology Olympiad!

  • @alicebrown1067
    @alicebrown1067 Месяц назад

    thank you so much!Your explanation about the stop codon really helps me a lot with my assignment.❤

  • @shaktiprakash8567
    @shaktiprakash8567 Месяц назад

    thanks mam, you save my money and time. God bless you. No one had explain the STOP CODON properly

  • @getasewalemu4999
    @getasewalemu4999 Месяц назад

    It is not completely clear how you bring the second image with the scale at the bottom?

  • @JuliaKarato
    @JuliaKarato Месяц назад

    How is no one talking about her perfect arrows??? Great video btw

  • @zizojaezekeom3565
    @zizojaezekeom3565 Месяц назад

    A lovely video ❤ however there's something i don't understand, in nested pcr, a primer amplifies a specific region in a sequence but i don't understand how, since a Primer is supposed to amplify from the binding site to the end no?

    • @zizojaezekeom3565
      @zizojaezekeom3565 Месяц назад

      Sorry i can't articulate my thoughts well since English isn't my first language, but for example i have a 600 nucléotide sequence and i want to amplify a 200 region inside of it but let's say i have a primer that start at 200 isn't going to amplify everything from 200 to 600?

    • @evanwang248
      @evanwang248 19 дней назад

      ​ @zizojaezekeom3565 Good question! Initially, the polymerase will actually continue to amplify all the way until the end of the DNA strand, and you won't find any of our target/limited DNA sequences. However, after the third cycle of PCR, remember that the primer going in the opposite direction will bind to overextended single strands of DNA so that when elongation happens again, now your product is fully restricted/limited to your target sequence. See this video for an explanation and animation: ruclips.net/video/2KoLnIwoZKU/видео.html

  • @gina2190
    @gina2190 Месяц назад

    Hiya , I’ve a question. Is agrobacterium possibly why some get morgellons leisions ? Or unlikely ? Can this bacteria copy dna of insects? Thanks 🙏

  • @professorarshadmajid8475
    @professorarshadmajid8475 2 месяца назад

    Excellent video. Very, very well explained.

  • @nasirahmadseraj526
    @nasirahmadseraj526 2 месяца назад

    This is exactly good lecture

  • @MinxInSinx
    @MinxInSinx 2 месяца назад

    15:43 Antibiotic resistant- why would you want to lower the plants natural defense & let a mimic run around, Like sneaking your buddy into the strip club (he's good, because he has escorted service 😂)

  • @MinxInSinx
    @MinxInSinx 2 месяца назад

    Because agrobacterium has BSL level 1. Implies it is man made! Only native plants (parent plants are symbiotic to the environment & thus do not contain any evidence of agrobacterium in the soil or roots because it is man made.

  • @MinxInSinx
    @MinxInSinx 2 месяца назад

    8:36 Lies The plant knows it is foriegn. This is observed in vito, because the m f mimic/ replication does not contain the same information the host recognizes this as a deletion. & this is where you get a certain percentage of abnormalities and mutations in your lineages & offspring. It is through the host. Because you just created it's own secretory pathway to allow the impermeable membrane to allow it to secrete the foriegn genomes it was designed to keep out! 🤦‍♂️ Like giving your loved ones abnormalities and mutations because you didn't know better because someone said it was safe. Do you really believe you're helping to create less dis-ease / disease & illnesses, abnormalities and mutations?

  • @user-wn8vn3wt9w
    @user-wn8vn3wt9w 2 месяца назад

    Simplified, straightforward approach, thanks:)

  • @CesarClouds
    @CesarClouds 2 месяца назад

    6:55 I've read organisms engulfing others like that is rare but was recently observed and the description was published in the journals _Cell_ and _Science_ .

    • @katharinehubbard5043
      @katharinehubbard5043 2 месяца назад

      Rare is ok if it is stable! To the best of my knowledge the evidence suggests that all mitochondria share a common origin, ie it may have happened multiple times in evolution, but only one of those events was stable enough to give rise to endosymbiosis

    • @CesarClouds
      @CesarClouds 2 месяца назад

      @katharinehubbard5043 Thank you for the clarification and thank you for providing these videos.

  • @user-es1qo2mh1y
    @user-es1qo2mh1y 2 месяца назад

    Hi is there wobble in the recognition of the restriction site

    • @katharinehubbard5043
      @katharinehubbard5043 2 месяца назад

      Not usually - restriction sites are very specific so any variation in sequence will stop the site being recognised - this can be exploited in genetic engineering as if you want to add/remove a site you only need to modify a small number of base pairs

  • @marcelomurilloquesada8400
    @marcelomurilloquesada8400 2 месяца назад

    Thank you very much, a very straightforward explanation. I have a question: what happens if the designed primers have very different Tm between them. Is it possible to design the primers before or after the gene sequence to avoid this and also get better CG percentages? If not, is there another approach to increase the PCR efficiency if the gene sequence only allows to design a non compatible pair of primers?

    • @katharinehubbard5043
      @katharinehubbard5043 2 месяца назад

      If your primers have very different Tm this might cause issues with your PCR. Sometimes in cloning this can’t be helped, but sometimes just moving the start position by a few bases, or lengthening one primer can really help if this gives you a more similar CG percentage.

  • @EnMaAi1995
    @EnMaAi1995 2 месяца назад

    Hey! If I am thinking of transcribing my plasmid into an mRNA, do I use the entire gene of interest? Or do I try to find the mRNA sequence and use the cDNA of that instead to put into my plasmid?

    • @katharinehubbard5043
      @katharinehubbard5043 2 месяца назад

      Good question! Slightly depends on what you are trying to do. If you want to eg produce large amounts of the protein in a heterologous system then you probably want the cDNA to make things more predictable , but if you are interested in the regulation mechanisms you might well want the entire gene

  • @gabrielmunoz9476
    @gabrielmunoz9476 2 месяца назад

    Great Video!

  • @dancevideo2
    @dancevideo2 2 месяца назад

    I am curious if this really gives consistent results. I had the impression that modern mobile phones do all kinds of non-linear "corrections" attempting to give the most pleasing image, so the absolute R,G,B pixel values are not necessarily directly related to just that one point on the image, but everything else in the image too, and possibly even the recent history of image frames as well, if the phone is attempting to compensate for what it believes is the currently-present ambient lighting?

    • @katharinehubbard5043
      @katharinehubbard5043 2 месяца назад

      I think it is important to recognised that the method can only be semi-quantitative. It is quite dependent on local light conditions - I would recommend doing all of your calibration and measurement in the middle of the day in a relatively short period of time. Students who did their experiments during sunset/evening and/or had a gap of a couple of hours or more between measurement found their data to be much less reliable

  • @KoiDoesMed
    @KoiDoesMed 2 месяца назад

    thank you

  • @solomonderese9311
    @solomonderese9311 2 месяца назад

    I have a problem with your use of two different restriction enzymes to cut the palsmid and gene of interest, won't this affect the joining of sticky ends through hydrogen bonding before they are ligated?

    • @katharinehubbard5043
      @katharinehubbard5043 2 месяца назад

      Using the two different enzymes allows for directional cloning. If you cut both ends with the same enzyme the insert has a 50% chance of going in backwards. The sticky ends will still work at each end with two different enzymes as long as the plasmid and insert use the right enzymes, but won’t work if the insert goes backwards as they won’t have the right hydrogen bonds (as you identify) - this gives you more control over your cloning. Hope that helps.

  • @solomonderese9311
    @solomonderese9311 2 месяца назад

    Shukran, asante sana

  • @sadiachowdhury2524
    @sadiachowdhury2524 3 месяца назад

    thank you so much!! brilliant explanation with drawings. you saved my time !! <3 <3 <3

  • @michaelrowland-us3he
    @michaelrowland-us3he 3 месяца назад

    At 3.01 how is the bond broken????

  • @tethpheak6745
    @tethpheak6745 3 месяца назад

    Thank you so much for your clear explanation!

  • @JasonLee_1991
    @JasonLee_1991 3 месяца назад

    Thank you for your video! It saved me a lot when I started my new experiments using plasmids!

  • @Ares-ru3hk
    @Ares-ru3hk 3 месяца назад

    How do molecular machines like triple-A ATPases work? It is known that they do work upon the hydrolysis of ATP+H2O to ADP+Pi, but how is this converted into mechanical energy? And how comparable are these -30 kJ mol-1 compared to the constant random noise of the environment these molecular machines are in?

  • @pantsandsocks1
    @pantsandsocks1 3 месяца назад

    Awesome - this is great thank you Katherine :)

  • @GarciaVailahi
    @GarciaVailahi 3 месяца назад

    Awesome lecture, thanks for simplifying a complicated subject

  • @AmruMagdy
    @AmruMagdy 3 месяца назад

    hbb147-honey

  • @saharmuhamed6079
    @saharmuhamed6079 3 месяца назад

    Can i know the matters which can be measured by it and the matters can't

  • @GurwinderShergill-dk2uc
    @GurwinderShergill-dk2uc 4 месяца назад

    Great job 👍

  • @user-bl2uo4wv9r
    @user-bl2uo4wv9r 4 месяца назад

    Why you speaking so fast😭

  • @user-tp9rg1cp9m
    @user-tp9rg1cp9m 4 месяца назад

    Hi, the reverse primer should be 5-CTCGAG or 5-GAGCTC? I am confused now😅

  • @victoralbuquerque1348
    @victoralbuquerque1348 4 месяца назад

    Amazing video, thank you!

  • @rakesh.g.rramalingappag.r5155
    @rakesh.g.rramalingappag.r5155 4 месяца назад

    what is the purpose of adding additional nucleotides at the end ?

  • @magiccatstail1777
    @magiccatstail1777 4 месяца назад

    This helped SO MUCH I was going mad over my lecture slides but this was amazing. Thanks a lot

  • @linusfrancis6906
    @linusfrancis6906 4 месяца назад

    Is epsilon the same as wavelength?

    • @katharinehubbard5043
      @katharinehubbard5043 4 месяца назад

      No - wavelength uses the lambda symbol. Epsilon is a measure of how inherently absorbent a particular molecule is at a particular wavelength, so acts as a calibration constant

    • @linusfrancis6906
      @linusfrancis6906 4 месяца назад

      My assignment has asked me to calculate the concentration of several solutions using beer's law - we calculated their absorbance and I'm assuming L is 1cm - so by converting the equation C = A/EL - but it hasn't given us an epsilom symbol, @@katharinehubbard5043

  • @xddddd6854
    @xddddd6854 4 месяца назад

    amazing video! thanks!

  • @MarianaOliveira-kb2bz
    @MarianaOliveira-kb2bz 4 месяца назад

    You are incredible, you have fantastic teaching skills! I was finally able to understand the entire process, even though I had been doing it for months, reading articles and everything, I was only now able to make the necessary connections.